Microprocessor controlled anodic stripping voltameter for trace metals analysis in tap water

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The construction and use of a portable, microprocessor controlled anodic stripping voltameter for on-site simultaneous metal analysis of copper, lead and cadmium in tap water is discussed. The instrumental system is comprised of a programmable controller which permits keying in analytical parameters such as sparge time and plating time; a rotating cell for efficient oxygen removal and amalgam formation; and, a magnetic tape which can be used for data storage. Analysis time can be as short as 10 to 15 minutes. The stripping analysis is based on a pre-measurement step during which the metals from a water sample are concentrated ... continued below

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Pages: 22

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Clem, R.G.; Park, F.W.; Kirsten, F.A.; Phillips, S.L. & Binnall, E.P. April 1, 1981.

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Description

The construction and use of a portable, microprocessor controlled anodic stripping voltameter for on-site simultaneous metal analysis of copper, lead and cadmium in tap water is discussed. The instrumental system is comprised of a programmable controller which permits keying in analytical parameters such as sparge time and plating time; a rotating cell for efficient oxygen removal and amalgam formation; and, a magnetic tape which can be used for data storage. Analysis time can be as short as 10 to 15 minutes. The stripping analysis is based on a pre-measurement step during which the metals from a water sample are concentrated into a thin mercury film by deposition from an acetate solution of pH 4.5. The concentrated metals are then electrochemically dissolved from the film by application of a linearly increasing anodic potential. Typical peak-shaped curves are obtained. The heights of these curves are related to the concentration of metals in the water by calibration data. Results of tap water analysis showed 3 +- 1 ..mu..g/L lead, 22 +- 0.3 ..mu..g/L copper, and less than 0.2 ..mu..g/L cadmium for a Berkeley, California tap water, and 1 to 1000 ..mu..g/L Cu, 1 to 2 ..mu..g/L Pb for ten samples of Seattle, Washington tap water. Recommendations are given for a next generation instrument system.

Physical Description

Pages: 22

Notes

NTIS, PC A02/MF A01.

Source

  • National American Chemical Society summer meeting, New York, NY, USA, 23 Aug 1981

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  • Other: DE81025210
  • Report No.: LBL-12580
  • Report No.: CONF-810813-7
  • Grant Number: W-7405-ENG-38
  • Office of Scientific & Technical Information Report Number: 6396490
  • Archival Resource Key: ark:/67531/metadc1207808

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 1981

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 30, 2018, 2:38 p.m.

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Clem, R.G.; Park, F.W.; Kirsten, F.A.; Phillips, S.L. & Binnall, E.P. Microprocessor controlled anodic stripping voltameter for trace metals analysis in tap water, article, April 1, 1981; California. (digital.library.unt.edu/ark:/67531/metadc1207808/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.